Home / 2,809.12-3,874.32-2,062.24

Finding the Fourth Proportional to 2,809.12, 3,874.32 and 2,062.24

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Solution

The fourth proportional to 2,809.12, 3,874.32 and 2,062.24 is: 2,844.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.12 : 3,874.32 = 2,062.24 : x
  2. Step 2: Convert to fraction form
    2,809.12/3,874.32 = 2,062.24/x
  3. Step 3: Cross multiply
    2,809.12x = 3,874.32 × 2,062.24
  4. Step 4: Simplify right side
    2,809.12x = 7,989,777.68
  5. Step 5: Solve for x
    x = 7,989,777.68/2,809.12
  6. Step 6: Final answer
    x = 2,844.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.